Does your rear brake light still work?

[2and3cylinders]

I've also had an issue with the twin contacts within the switch which may need some dielectric grease but it is tricky to dis and reassemble correctly 

[Buggy Nate]

Bit of oil under the rubber boot at the top helps with corrosion and free movement.

[roadrash83]

 I would try WD40 on the switch to lube it, oil will attract more dirt.

[Buggy Nate]

6 minutes ago, roadrash83 said:

 I would try WD40 on the switch to lube it, oil will attract more dirt.

It is a sealed switch, won’t matter either way.

[v1nn1e]

I had issues with intermittent activation of this switch and it was as Betoney said, the plunger was a bit stiff in the housing/rubber boot and when the spring was tensioned by the foot pedal it sometimes wasn't quite enough to pull the plunger out.

Liberal application of WD40 whilst pulling the plunger in and out with a pair of pliers and working it back and forth has sorted it.

[1moreroad]

Funny to see this. For the 1st time on a 2015 I noticed about a week ago that once or twice I had to press the rear pedal hard to activate the light. Once it worked again, any pressure was ok. I guess the sensor gets a little sticky?